Fastener for car-doors.



S. F. KLOHS.

FASTENER FOR CAR DOORS.

APPLICATION FILED MAR. 28. 1910. RENEWED OCT. 11.1915.

1 ,1 83,833. Patented May 16, 1916. v 2 SHEETS-SHEET 1.

l o o lo 0 o o o mfi o WITNESSES INVENTOR R22. I j m S. F. KLOHS.

FASTENER FOR CAR DOORS.

APPLICATION FILED MAR. 2 8, 19x0. RENEWED OCT. 11. 1915.

Patented May 16, 1916.

2 SHEE-T8SHEET 2- wn'nsssss THE COLUMBIA FLANOGRAPH c0., WASHINGTON, D.C.

SAMUEL F. KLOHS, OFCHICAGO, ILLINOIS.

FASTENER FOR OAR-DOORS.

Specification of Letters Patent.

Patented May 16, 1916.

Application filed March 28, 1910, Serial No. 551,926. Renewed October11, 1915. Serial No. 55,353.

To all whom it may concern:

Be it known that I, SAMUEL F. KLoHs, a citizen of the United States,residing at Chicago, in the State of Illinois, have invented certain newand useful Improvements in Fasteners for Car-Doors, of which thefollowing is a specification. I a

My present invention relates in genera to sliding doors, and likestructures, and

more particularly to car side-doors; and

means for limiting movement of the door in closing and for looking itwhen closed against accidental opening.

The principal objects of my invention are the provision of an improvedconstruct on of stop and latch for limiting the closing movement of thedoor and for'automatically looking it in closed position as the clos ngmovement is completed, thereby preventlng accidental opening of the doorand hammerlike swinging thereof back and forth upon the track with oftenconsequent disengagement of the door from the track and loss thereof.

Additional objects of my present invention are the provision of lockinmembers which may be conveniently an inexpensively manufactured andassembled, and where desired applied to doors already in use withoutsubstantial changes in such doors.

In the attainment of the foregoing objects, and certain further benefitsto be below disclosed, as well as in overcoming the disadvantagesreferred to, I have provided the constructions disclosed in theaccompanying drawings wherein- Figure 1 is an elevational view of theside of a freight car having a sliding door with my present improvementsapplied thereto; Fig. 2 is an enlarged plan vlew taken on line IIII ofFig. 1; Figs. 3 and 4 are respectively side and end elevational views ofan embodiment of my improved locking mechanism; Fig. 5 is an elevationalview illustrative of a further embodiment of my improved lockingmechanism.

Referring first more particularly to Fig. 1 of the drawings, it will benoted that I have here shown a customary construction including theside, 10, of a car having an opening, 11, adapted to be closed by a door12 supported by hangers 1313 having rollers 1414 riding on a track 15,the door 12 being restrained from swinging outwardly from the car by theretaining bracket 16.

For the purpose of automatically locking the door 12 in closed positionas it moves to the left closing the opening 11, I preferabl'y make useof cooperating fastening and bracket members 17, and 18, one carriedbythe door and the other mounted for engagement therewith at aconvenient point at j the sidelO of the car, adjacent the forwardcontemplates the provision of improved edge of the door, the member 18also serving the purpose of an additional restraint for preventingoutward swinging of the door.

Referring now more particularly to the embodiment of my inventionillustrated in Figs. 3 and 4, it will be seen that for the purpose ofholding the door 12 in closed position I utilize a hook l9 pivoted, asindicated at 30, between a pair of depending cars 31 formed on thebracket 18, and adapted for engagement with the teeth 24 24 formed onthe cooperating member l7 carried by the door 12. To the end that thehook 19 may be sustained in operative position, I provide a spring 32inserted under compression in a housing 33 formed in the finger 34, bymeans of which said hook may be withdrawn from said teeth when it isdesired to open the door. The opposite end of the spring 32 is mountedupon a stud 35 formed upon the reinforcing flange 36. As may be clearlyseen on an inspection of Fig. 3, the hook 159*, being provided with aninclined face 20 in order that as the door moves into closed positionsuch hook may be depressed by the teeth 24 24 it offers no resistance tosuch closing movement but will engage such teeth and prevent anymovement in the opposite direction and thus the opening of the door,until withdrawn from engagement with such teeth in the manner abovedescribed.

Referring now more particularly to Fig. 5, it will be apparent that inthe embodiment of my invention here shown, I mount pivotally, asindicated at 40, on the member 17 carried by the door 12, a hook 19having a concave inner surface 41 for engaging with the bracket 18 andthereby preventing opening of the door 12 save when the hook is liftedout of engagement with said bracket. To the end that the hook 19 may becaused to rise freely in the cl0s-' ing movement of the door as itstrikes the edge 42 of the bracket 18", and allow such movement to beeffected without interference, I provide the hook with a convex surface20 Having thus described my invention and illustratedits use, what Iclaim as new and desire to secure by Letters Patent is the fo1- lowing:

1. A lock for car doors comprising arack,

carried by a door adjacent the bottom edge thereof, a bracket forrestraining the door from outward movement, a hook pivotally mounted toengage said rack to prevent movement of said door in one direction andautomatically permitting freedom of movement of the door in the oppositedirection, said hook having a concaved inner surface and a convexsurface, and means 'engageable with said concaved inner surface.

2. A look for car doors comprising hook copies of this patent may beobtained for five cents each, hy-add ressing the Commissioner ofPatents,

and rack members carried respectively by the car and by the dooradjac'ent'the bot tom edge thereof, the hook member being pivotallymounted and having a concaved 111116? surface, a bracket with which saidsurface engages to prevent opening of the door, said hook being providedfurther w th a convex surface adapted to engage the opposite edge ofthebracketto allon freedom WM. J. REX.

Washington, D. 0.

